Was it camera angle that made it appear to be so perfectly flat (top and bottom of rocket at same altitude) when it was in free fall or was that actually the target free fall orientation?
Especially subsonic I assume their orientation does not matter a whole lot when just trying to fall with max drag.
Not sure how much energy they'll save doing the flip maneuver earlier though, seems like they want max drag as low as they can go, then flip to powered flight at the last moment possible -- and their problem seems to be keeping the engines lit.